Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 838 [Rate centres in NPA 838] [Dial plan for NPA 838]

NXX: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
838-223 A Westport NY   792K CHARTER IP ENABLED SERVICES, LLC 134      
838-223 0 Westport NY   792K CHARTER IP ENABLED SERVICES, LLC 134   2019-02-01   
838-223 7 Westport NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 134   2025-02-16   
838-223 9 Westport NY ALBYNYSSXAZ  818H PEERING HUB, INC. - NY 134   2021-04-26   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.